A database of this International Standard is a collection of data describing graphical symbols and their properties. Click on "General Description" on the left to learn how the database is structured, how to use graphic symbols, and how to handle change requests for new symbols.
GB/T 4728.1-2005 history
2018GB/T 4728.1-2018 Graphical symbols for electrical diagrams.Part 1:General information
2005GB/T 4728.1-2005 Graphical symbols for electrical diagrams Part 1:General information
1985GB/T 4728.1-1985 Graphical symbols for electrical diagrams--General information